Maaaaybe TH is trying to get a feel for how other people see things. Sometimes it's hard to tell if your perspective is widely shared or not. It's entirely possible that everyone could vote "like" or "dislike" and then he'd be like wow, I guess this is really black and white. Far fetched, but hey who knows what goes on in the mind of TH...
But yeah a very vague question. I voted "like" cuz I couldn't think of any time spoken words detracted from a song.